二维码(扫一下试试看!) | 一种基于压缩感知理论的LCTF光谱超分辨方法 | A Spectral Super-Resolution Method of LCTF Based on Compressive Sensing | 投稿时间:2016-01-26 | DOI:10.15918/j.tbit1001-0645.2018.01.007 | 中文关键词:液晶可调谐滤光片光谱仪超分辨压缩感知 | English Keywords:liquid crystal tunable filter (LCTF)spectrometersuper-resolutioncompressive sensing | 基金项目:国家"八六三"计划项目(2013AA122904);中国科学院/国家外国专家局创新国际团队资助项目(2013AA1229) | | 摘要点击次数:889 | 全文下载次数:611 | 中文摘要: | 液晶可调谐滤光片(LCTF)因其在宽谱段上具有简单、高效的调谐滤光功能常作为微型光谱仪应用在多种测量领域.然而,滤光式光谱仪的光谱分辨能力受限于其系统的带宽,进行高分辨测量时的硬件成本和测量数据量都较大.将压缩感知理论引入LCTF的光谱测量中,通过将LCTF获取的测量数据与其对应的调谐波长处的透过率函数进行关联计算,得到光谱分辨率优于系统带宽的目标光谱曲线.分析表明,本文模型下的压缩感知测量矩阵具有良好的非相关性,同时对地物光谱进行的压缩感知重构结果表明,在仅进行32次测量的条件下,本文方法得到了珍珠石目标的128波段的光谱曲线,能分辨出传统方法不能分辨的光谱细节,且反射率的平均误差仅有0.75%,同时对噪声具有一定的抵抗性. | English Summary: | The liquid crystal tunable filter (LCTF) is used as micro spectrometer in many measuring fields for its simple and efficient light filter function. But the spectral resolution of LCTF is limited by its bandwidth, and the hardware cost and larger measure data are the problem in higher resolution measuring. In this paper, combining the compressive sensing with the LCTF spectral measuring method, a new model was proposed to get the object spectral curve with a superior spectral resolution than the system bandwidth. In the model, the data calculation of LCTF spectral measurement was correlated with its transmittance function of corresponding wavelength. Analysis results show that, the measurement matrix in the proposed model possesses a good incoherence property. The simulation results of real earth object's spectrum show that, the spectral curve of 128 band pearl stone can be reconstructed with only 32 measurements, the mean error of reflectance is only 0.75% with a certain noise repellency, and the spectral details can be distinguished while traditional method cannot work. | 查看全文查看/发表评论下载PDF阅读器 | |
王莉,孙玉梅,杨凯,刘学杰,陈祥光.即时学习多模型加权GPR软测量方法[J].北京理工大学学报(自然科学版),2018,38(2):196~199,204.WANGLi,SUNYu-mei,YANGKai,LIUXue-jie,CHENXiang-guang.ASoftSensorMethodBas ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21杨凯,孙玉梅,王莉,杜妮,陈祥光.基于ICA变量分组的集成软测量方法研究[J].北京理工大学学报(自然科学版),2018,38(6):631~636.YANGKai,SUNYu-mei,WANGLi,DUNi,CHENXiang-guang.StudyonEnsembleSoftSensingMet ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21陈思颖,田依杉,陈和,张寅超,郭磐.粒子退偏比测量拉曼米-偏振激光雷达系统设计与仿真[J].北京理工大学学报(自然科学版),2018,38(10):1091~1095.CHENSi-ying,TIANYi-shan,CHENHe,ZHANGYin-chao,GUOPan.DesignandSimul ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21.北京理工大学学报2018年总目次(第38卷)[J].北京理工大学学报(自然科学版),2018,38(12):1321~1338..[J].TransactionsofBeijingInstituteofTechnology,2018,38(12):1321-1338.二维码(扫一下试试看!)北京理 ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21牟伟清,刘荣科,杨昕欣,王子杰.针对射频相对测量敏感器的快速标定方法[J].北京理工大学学报(自然科学版),2017,37(1):100~105.MUWei-qing,LIURong-ke,YANGXin-xin,WANGZi-jie.AFastCalibrationMethodfortheRFRe ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21陈彬,武宏阳,刘阁.微水对绝缘油凝点倾点影响的红外光谱检测[J].北京理工大学学报(自然科学版),2017,37(2):185~190,195.CHENBin,WUHong-yang,LIUGe.DetectingtheImpactofTraceWateronSolidifyingPointandP ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21王才,徐成发,冯祺,高梅国.基于瞬时频率率的平动刚体目标微动参数测量[J].北京理工大学学报(自然科学版),2017,37(3):318~324.WANGCai,XUCheng-fa,FENGQi,GAOMei-guo.Micro-MotionParameterMeasurementofRigidT ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21罗会甫,王扬红,朱炜,陈强华,吴欢,马斌武,赵振峰.基于激光自混合干涉法的微振动测量[J].北京理工大学学报(自然科学版),2017,37(6):584~589.LUOHui-fu,WANGYang-hong,ZHUWei,CHENQiang-hua,WUHuan,MABin-wu,ZHAOZhen ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21魏冬梅,张立人,胡楠楠,刘璐,马娜,赵曰峰.联合空谱信息和Gabor特征的高光谱人脸识别算法[J].北京理工大学学报(自然科学版),2017,37(10):1077~1083.WEIDong-mei,ZHANGLi-ren,HUNan-nan,LIULu,MANa,ZHAOYue-feng.Hype ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21陈强华,徐东,张孟策,罗会甫,罗军.基于三稳频激光波长的相移干涉测量法修正空气折射率湿度参数[J].北京理工大学学报(自然科学版),2017,37(11):1108~1113.CHENQiang-hua,XUDong,ZHANGMeng-ce,LUOHui-fu,LUOJun.HumidityCor ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21
| |